gates



P. W. GATES.

COMPOUND JOLT RAMMING MACHINE.

APPLICATION FILED AuG.21. I9Is.

' 1,306,425. PatenIedJune 10,1919. 2 SHEETS-SHEET l.

Mig/@f6 P. W. GATES.

COMFOUND JOLT RAMMING MACHINE.

APPLICATION FILED AuG.2|.191a.

1,306,425. Patented June 1o, 1919.

2 SHEETS-SHEET 2.

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rHILErUs W. GATES, or CHICAGO, ILLINOIS,

SSIGNOR TO MUMFORD MOLDING MACHINE COMPANY, OF JERSEY CITY, JERSEY, A CORPORATION.

COMPOUN D OLT-RAMMING MACHINE.

Specification-of Letters Patent.

Patented J une 10, 1919.

Application led August 21,` 1916. Serial No. 116,020.

T0 all whom 25 may concern:

Be it known that I, PHiLn'iUs W. GATES, a citizen of United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and use ful Improvements in Compound Jolt-Rammnig Machines, of which the following is a specification.

This invention relates to improvements in compound jolt ramming niachinesfand has for its object to provide mechanism of this nature which will permit the operative coupling up of a plurality of small capacity units in such wise as to permit their .handling heavy and large work. p Hitherto in Jolt raniming, it has been customary to construct machines according to the work which they were required to perform and owing to the great weight of such machines` when `constructed for large work, their operation was highly ineflicient unless utilized for the special Work for "which they were designed. Mylinvention aims to provide means which will permit the coupling up of machines designed and constructed for relatively small work, such machines when so coupled beingcapable of handling relatively large work.

Still another object resides in the controlling means forsuch Compound multiple unit machines. These and other objects will be more fully set forth and described in the following'specilication, and shown in the accompanying drawings, in which- Figure 1 is a plan view showing the arrangement of the operating fluid outlets.

Fig. 2 is a similar view showing the operating fluid inlets, the outlets and cross-bars being shown as removed for clearness.

Fig. 3 is a side elevation of a compound y machine comprising a multiple unit construction. Y

Fig. 4L is an end elevation of the same. l Fig.' 5 is a vertical transverse section y throughl one of the units.`

Like numerals refer to like elements throughout the drawings in which .10. indi- Cates generally my compound machine coinprising a battery of units 11, shown in detail inFig. 5, for example, same comprising a table 11a carried by a plunger 11b reciprocally mountedl in the cylinder llcin the base of vwhichis located the valve chamber 11d. Inserted Vin this v,valve-chamber is a valve block 11 provided `with the `inlet and4 duct'llf communicating with the passage 11g,

Y the valve seat l1k 5, or openposition,

Y which in turn communicates with the duct 11h which leads to the tube 11i to the inlet port 111' in cylinder wall, from whence it leads to the clearance space beneath the plunger. `Surrounding the passage 411g is and co-acting therewith is a valve 111 shown in Fig.V 5 as located in open positionand a by-pass 11m leading therebeneath from the inlet port llf. Valve l1l has its stem projecting upwardly beneath the striker block 11 carried by the plunger 11b. An outlet port 11D is located in the wall of the cylinder 11 above the inlet port` 111, This construction is `similar to thatshown and described in the patent to Mumford and Huggins. No. 1,167,511, and utilizes what is known as the Mumford-Huggins valve, the action being briefly as follows: Air or other operating fluid is admitted through the passage llf, with the valve 111 in position shown. The air will flow through tube 1li beneath the plunger 11b, operating to raise the latter until the portion 11(l of the plunger cuts off the inlet port 11j, at `which time the momentum of the plunger and associated mechanism, as well as the expansive action of the operating fiuid, will operate to carry the plunger up until theport therein communicates with the outlet port 111 of the cylinder whereupon a large portion of the operating fluid acting against the plunger 111? will exhaust through the port 111. Previous to cutting on the inlet port, the pressure on the lower side of the valve 111 is less than that upon the upper side, which difference in pressure, as nearly as can be ascertained, is probably due to the flow of the operating fluid past'the mouth of the duct 11m, and this difference in pressure coupled with the weight of the valve serves to maintain Athe latter in the position shown in Fig. y as it is termed. After cutting oft' of the operating fluid takes place the back pressure is set Aup lin the line and communicates with the under-side of the valve 1ll through the duct 11m, whereby the Vpressures on the top and bottom of the valve permittingtheexhaust'of the conlined operating iuid, after which exhaust the plungerV will drop toposition shown in Fig. ,5, Whereupon the strikerjllqfwill contact yvitlizthe .tQp of the valve stem and positively move the valve to open position.

It will be obvious that to construct an indiviCllliLll machine capable of handling large Work Ait Will require an extremely heavy Y. I I

Whereasin the present day practice it is structure Which would increase the cost of operation Very greatly, such machines-being practical only for use with` special heavy work. To overcomeithese objects and econ- .omize shop opei-ation,- ,I provide a plu-.

rality. or Y*battery of lindividual units v1 1 mounted in -talinement, as shovvn in .the drawings,` having their major ares' co-aXial. RigidA bars or`loeamsf12 extend across,b e

13y ispijovided havingbranches 13,1 commu,- nicatingvvitheachof the inlet ducts 111f of the units 11, suitable stop-cocks or vvalves ,13h being1 providedfor each'offthenbranches 13?; The main inlet,l orsupply pipe, r,l1is provided with a suitable valve 14 to'. control flow oli(-ii-uidftomanifold13. It will be obvious that the entire supply of air may be cut-olf or regulatedby means'` of the valve 14a, or the supply for any oiitheV units 1.1,

maybecontrolledby the individual valvesV 13a', such regulation being advisable in handlin .some s ecies of Work.

Y'I also pijoyide an exhaust manifold 1:6"

' having branches 1t'T communicating With the exhaiist .ports 111 ofi the individual` uiii'ts'il'. Valves,.,or the like llare'provideid 'for each: o'i thebr'anches 16?, and a main ieXhaust Vpipe `ly7 is' provided lead'ing. from the'mani'foldj 16` and provided With a controlling; valve Asili.' the case of theI supply, the -individual.,exhaust 'ducts are separately regulatable Aby means of the valves/165. or thev exhaust 'from theV battery oi" machines may be controlledfbytlie Vuse.

ofthefvalvetlh 11n' tliiswvay am' notI only enabled to control the tseparatesupply and exhaust ofthe' 'operating Huid to meet the conditions of, o peratioinhut IY may simul tan'eoiisl'y regulate'hoth exhaust and, supply offtheflattery.

' three* machinesV constituting thebattery or compound machine, Ifmayvutilize shorter connecting or coupling loars 12, Whichl' findV desirable .toj use, or 1 may' remove the hars 12y entirely and operate the units 11 independf ently.

' cated in aA pit 18 having the floor-18 thereon approximately adjacent to l the 'level ofV the i cylinder or ,rather according, to. the [amount e .ohyious While I-.hav'e shown,

'In Fig, 3,1 have sliovvn the battery` aslo vtl-'ie `frequencyv or the jolting portions and vgreatly reduces the cost of operation. In addition','itenables me to use the machines for small Work or large Work as desired,

customary to allow the largecapacity machines to remain idle when not handling' large Work,

The advantage ofV providing exhausting,

ulating valves lies inthe tact.' that I ain enabled to. readily regulatethe .jolting orgina-V paet ohtainedlas it .will be obviousjtliat I l `this impact Will vary accordingrtoV the tweenand are secured ltoeachV side of the units 11,' being secured thereto liydetacln;` ableboltsgl, orgthe like. An inlet manifoldY amount ofiluid exhausted Vfromgthe-Wnjlring lf ilir remainingin suchk cylinder: ilfifliile- 111g @he lmpact.

it `will the obvioiarha 1'; may :Vny th construction shown .and descri-bed,v inagr-11.11111-V ber of Ways to olotain` same, and I donot Wish'tohe restricted tothe form ofmyine vention 4 shown and described ,beyond the i scopre ofi the appended claims, j-

Y lhat 'Ifclaiml is: l Y; 1. AV compound jolt ramrningmachinecomprising a plurality .of separahly; operable unit machines comprising tables, 'andmeans for reciprocating `said tables, means gtogdlirectly andijigidly securefsaid'r tables.toV

getlier, and means to @QI-ltrolthg gupplyf operating.fluid.to.saidmaohines` Y 5 :2. lcompound. ltramining, i Comprising a .plurality Q f" .separaba @PerahlefA Limit1 machines comprising-tables, and means for reciprocating-said tables, meansto getlier,I-and; meansfto` controll of operating fluid -from said machines;

los, directly. and rigidly securesaid.tables.to1V Y v 3. Inga: machine of; theclass described,

comprisinga; plurality of. unit o-lt ramming..

11,0V machines, meansto detachably: andrrigidlyV Y. Y

secure said. machii'ies u together, meanfs; 150' Sup- Y, ply operating iuid theretoa11d asin-geleV Y means to separately control tlieexhaustfrom said units. y n 4. VIn a machi I, t A 11.5 Y ne of the class described-. V

` machines, means. to detachaloly a-Ildffrigiidly secure said m achinestogether, means tesine ply operatingrfluid thereto, meansfto sepas:

rately.' control a the'. exhaust from! n,said limits', Y

anda single means `to simultaneously Qontrol.

7.5, machineofwthe classi:described,4

Comprising aplutaity et' untielt .f

machines, .comprising tables, and. .means or.:

11163118 .7&0 .Supply Operating fluid to. said rre-.V

ciprocat'ing."means,` means.` to .separatelyi' con` {7130,7-

trol the exhaust from said units, and means to simultaneously control the exhaust from all said units.

6. In a machine of the class described, comprising a plurality of unit jolt ramming machines each having a table, and means to detachably and rigidly secure said tables together, said means comprising bars detachably secured to the tables of said units.

7. In a machine of the class described, comprising a. plurality of unit jolt ramming machines, means to detachably secure said machines together, and an exhaust manii'old having branches communicating with each of said units, said branches being each provided with a separately operable valve member.

8. A molding machine comprising a plurality of duplicate unit machines each comprising a cylinder, a plunger, means for admitting fluid pressure to the cylinder, a movable table controlled by said cylinder and plunger, said units being arranged with their tables adjacent to provide a larger table having the desired aggregate area, with a clearance between adjacent tables, means for locking tvvo or more of said tables together to insure synchronous movement thereof, and means `for supplying iuid pressure' to all of the units thus connected to operate the individual tabes as a single table or to operate the tables independently of each other when disconnected Jfrom each i other.

In testimony whereof, I have subscribed my name.

PHILETUS W. GATES.

Copies of this patent may be obtained for live cents each, by addressing the Commissioner of Patents. Washington, D. G. 

